//package learn.cwebsitelearn.chapter8;
//
//import java.util.TreeSet;
//
///**
// @AUTHOR LYF
// @DATE 2022/3/26
// @VERSION 1.0
// @DESC
// */
//public class abc {
//    //final int a;
//    public static void main(String[] args) {
//        final int c;
////        System.out.println("hello".equals(new StringBuffer("hello"))+";"+
////                "hello".equals(new String("hello")));
////
////        TreeSet treeSet = new TreeSet();
////        treeSet.add(10);
////        treeSet.add(3);
////        treeSet.add(2);
////        treeSet.add(11);
////        treeSet.stream().forEach(u->{
////            System.out.println(u);
////        });
//
//        //System.out.println(true?new Integer(1):new Double(2.0));
//
//
//    }
//}
